Low loss snubber circuit with active recovery switch

Details Low loss snubber circuit with active recovery switch Low loss snubber circuit with active recovery switch

1992-12-02

1995-01-03

Sterrett, Jeffrey L.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 20, 363131, H02H 7122

Patent

active

053792068

ABSTRACT:
A switch mode power converter includes a snubber diode and a snubber capacitor arranged in series with one another across the switching element of the converter. A discharge path is provided for discharging the capacitor by including a second diode, a switch and an inductor extending in series from the node between the snubber diode and the snubber capacitor to the line side of the transformer. The inductor may be coupled to a winding in series with a diode to allow clamping of the voltage across the inductor.

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Steit and Tollik; "High Efficiency Telecom Rectifier Using A Novel Soft-Switched Boost-Based Input Current Shaper"; (Nov. 1991) Intelec '91; pp. 720-726.

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